<template>
    <div>
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>
        <el-card>
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addGoods()">添加商品</el-button>
                </el-col>
            </el-row>
            <el-table :data="goodsList" border stripe>
                <el-table-column label="#" type="index"></el-table-column>
                <el-table-column label="商品名称" prop="goods_name"></el-table-column>
                <el-table-column label="商品价格(元)" prop="goods_price" width="120px"></el-table-column>
                <el-table-column label="商品重量" prop="goods_weight" width="100px"></el-table-column>
                <el-table-column label="创建时间" prop="add_time" width="170px">
                    <template slot-scope="scope">
                        {{scope.row.add_time | dateFormat}}
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="130px">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
                    </template>
                </el-table-column>
            </el-table>
             <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[5, 10, 20, 50]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total" background>
            </el-pagination>
        </el-card>
    </div>
</template>

<script>
export default {
    data() {
        return {
            // 查询参数对象
            queryInfo: {
                query: '',
                pagenum: 1,
                pagesize: 10
            },
            // 商品列表
            goodsList: [],
            // 商品列表数据总数
            total: 0
        }
    },
    created() {
        this.getGoodsList()
    },
    methods: {
        async getGoodsList() {
            const { data: res } = await this.$http.get('goods', {
                params: this.queryInfo
            })
            if (res.meta.status !== 200) {
                return this.$message.error('获取商品列表失败！')
            }
            console.log(res.data)
            this.goodsList = res.data.goods
            this.total = res.data.total
        },
        // 页码改变时重新加载数据
        handleCurrentChange(newNum) {
            this.queryInfo.pagenum = newNum
            this.getGoodsList()
        },
        // 页面大小改变时重新加载数据
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize
            this.getGoodsList()
        },
        // 根据id删除商品
        async removeById(id) {
            const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
            }).catch(error => error)
            if (confirmResult === 'cancel') {
                return this.$message.info('已取消删除')
            }
            const { data: res } = await this.$http.delete(`goods/${id}`)
            if (res.meta.status !== 200) {
                return this.$message.error('删除商品失败！')
            }
            this.getGoodsList()
            this.$message.success('删除商品成功')
        },
        // 跳转到添加商品页面
        addGoods() {
            this.$router.push('/goods/add')
        }
    }
}
</script>

<style lang="less" scoped>

</style>
